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    ________ no need for us to discuss the problem again since it has already been settled.

    A. It has

    B. There is

    C. It is

    D. There has

     

    答案：B
    解析：

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    　　A spirit of adventure, curiosity about different cultures and the desire for a challenge can e found in young people everywhere．More and more students in China are backpacking around the country．

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    　　“I can no longer put up with the instructions of a tourist guide,”said Huang Ye, a 19－year－old college student in Beijing．“They are always driving you to places that you do not want to go to and trying to make you buy local souvenirs．”

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    　　Backpackers see the difficulties of such travel as a challenge．Living on bread and water for days on end, wearing the dame clothes over and over again and carrying a heavy bag on their backs while climbing a mountain are all character－building experiences．

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